Gerbera jamesonii, Osteospermum sp. and Argyranthemum frutescens: New Hosts of Fusarium oxysporum f. sp. chrysanthemi |
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| Authors: | A Minuto M L Gullino and A Garibaldi |
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| Institution: | Authors' addresses: Dipartimento di Valorizzazione e Protezione delle Risorse Agroforestali (Di.Va.P.R.A.), University of Torino, Via Leonardo da Vinci 44, 10095 Grugliasco, Italy;;Center of Competence for the Innovation in the Agro-environmental Sector (AGROINNOVA), University of Torino, Via Leonardo da Vinci 44, 10095 Grugliasco, Italy (correspondence to M. L. Gullino. E-mail: ) |
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| Abstract: | The pathogenicity of five isolates of Fusarium oxysporum obtained from infected gerbera (Gerbera jamesonii), chrysanthemum (Chrysanthemum morifolium), Paris daisy (Argyranthemum frutescens) and African daisy (Osteospermum sp.) plants was tested on some varieties of the following Compositae hosts: C. morifolium, G. jamesonii, Argyranthemum frutescens (Paris daisy) and Osteospermum sp. and compared with the host range and pathogenicity of an isolate of F. oxysporum f. sp. chrysanthemi obtained from the ATCC collection. The results indicated that isolates of F. oxysporum from G. jamesonii as well as those from A. frutescens and Osteospermum sp. belong to the forma specialischrysanthemi. The isolate from gerbera was virulent on all tested varieties of gerbera, C. morifolium, A. frutescens and Osteospermumsp. Similar results were obtained testing the isolates obtained from A. frutescens and Osteospermumsp. The strain from C. morifolium infected cultivar of gerbera, A. frutescens and Osteospermum sp. The pathogenicity of isolate of F. oxysporum f. sp. chrysanthemi obtained from the ATCC showed a different cultivar range particularly in the case of chrysanthemum and gerbera. |
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| Keywords: | fusarium wilt Fusarium oxysporum f sp chrysanthemi Compositae |
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